9640994289 has 8 divisors (see below), whose sum is σ = 12981933312. Its totient is φ = 6363692400.

The previous prime is 9640994273. The next prime is 9640994329. The reversal of 9640994289 is 9824990469.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9640994289 - 2⁴ = 9640994273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9640993289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15908929 + ... + 15909534.

It is an arithmetic number, because the mean of its divisors is an integer number (1622741664).

Almost surely, 2^9640994289 is an apocalyptic number.

It is an amenable number.

9640994289 is a deficient number, since it is larger than the sum of its proper divisors (3340939023).

9640994289 is a wasteful number, since it uses less digits than its factorization.

9640994289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31818567.

The product of its (nonzero) digits is 10077696, while the sum is 60.

The square root of 9640994289 is about 98188.5649604881. The cubic root of 9640994289 is about 2128.3380460836.

The spelling of 9640994289 in words is "nine billion, six hundred forty million, nine hundred ninety-four thousand, two hundred eighty-nine".